CHICAGO — A Chicago woman imprisoned in Indonesia for the 2014 killing of her mother says in videos posted on YouTube that she acted alone and her boyfriend at the time only helped her cover it up because she threatened him.

Heather Mack recorded the confession from prison in Indonesia. She claims she became obsessed with killing her 62-year-old mother, Sheila von Weise-Mack, after learning her mother killed her father when she was 10.

Mack says that Tommy Schaefer falsely confessed to striking her mother, in the head with a metal fruit bowl during their trip to Bali and only helped her stuff the body in a suitcase and clean up because she threatened to blame him.